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Denkmeier Optical, Inc. is a company co-owned by Russ Lederman and Spectrum Thin Films in Hauppauge NY. Russ Lederman is Inventor of The Power x Switch and Power Switch Star Diagonals. Let Denkmeier Optical be your source for the finest Binoviewers, Eyepieces, and Star Diagonals available anywhere. Whether your telescope is an SCT, Newtonian Reflector, Refractor, Maksutov Cassegrain, Dobsonian, Classical Cassegrain, RCX or other RC telescope brand, we have a binocular viewer for you! See our FAQ section for answers to common questions. You may now see copies with similar sounding names of our products elsewhere, but do not be misled: Each and every Denk undergoes personal hands-on quality control procedures by Denk's owners throughout the production process in a state for the art facility here in the USA.
WHICH BINOVIEWER TO BUY??? Click Here For All You May Need To Know
(Scroll Down Our Home Page For Links, Deals and Interesting Information)
Denkmeier Eyepieces, as good as anything you've looked through! Availabe for our Binoviewers as Matched Pairs or as Singles for all telescope users!
New D14 Eyepiece Review on cloudynights.com (Link)
$100 Discount for First 100 Customers!!!!! Click Below for Details! There Are Still Some Spaces Available. Read Observing Report After Clicking On Link.*
NEW!!!!
"Spectrum 60TM" PST Upgrade
*ORDER NOW! Click Here For All Details!!!
Comments By an Expert Solar Observer:
"Visually, the view through the D14 and D21 was breathtaking today. The little proms and active regions looked great. It was much, much better than in the standard PST. I'm completely sold! Thanks again -Greg Piepol http://www.sungazer.net/index.html
Don't Downsize......Upsize!
As Pictured In Highlighted Areas Of Image, Denkmeier Optical Now Offers An Upgraded 60mm Tube Assembly And BF10 Blocking Filter For Your PST!! By Increasing The Aperture Of The PST by Completely Replacing the 40mm PST Tube Assembly, Resolution and The Detail Seen Are Increased. Enlarge Your PST From a 40mm, To A 60mm Aperture H-a Scope. We Increase Your PST's Current BF-5 to a BF-10 Blocking Filter Also!
The Spectrum60 Upgrade for The PST does not change the bandwidth or transmission characteristics of the PST Etalon. It does provide a higher resolution image for the Etalon and ultimately, to the observer.
Introductory Price is only $599! Coated in USA At Our Spectrum Thin Films Facility In NY. Additional Options Will Include An Aluminum Case, BF15, an Upgraded Focusing knob, And Clam Shell Mount. Shipping Is Additional. More Details To Come Soon! Check Back.
ORDER NOW! Click Here For All Details!!!
You Can't Go Wrong With
New Binoviewer Super Systems!!!
Works In Any Telescope!
All Standard and Denk II Super Systems Include:
2" Optical Corrector System (OCS)
Patented Dual Arm Power x Switch
Individual Focusing Diopter Eyepiece Holders
Aluminum Case
READ MORE: CLICK HERE
Our Preferred Super System Dealers
  
Europe East Coast West Coast
 
Ha With Denk Binoviewers New BinoSystems Binoview With Your PST
For Lunt Solar Scope 60mm
Operates at 1.1X/1.8X/2.3X
Click On Image To Link To Page
New Denk Hi Def Filters....On Sale Now!!!
Click Filter Image For More Information
10% Will Be Deducted from Your Shopping Cart Price, In Addition to Our Already Great Special Deal On The New Denk HI Def Filters, Made In USA! Just Order Here Online. Click On The Banner For Information On Our Hi Def Filters
$"Complete Product Price List Link "$
 
Learn More About Our New Denkmeier Hi Def OIII, UHC, and Planetary Filters, Made At Our NY Facility!
"Let Two Eyes Add A New Dimension To Your Observations Of The Night Sky and You Will Never Look Back" -Russ Lederman, Denkmeier Optical, Inc.
New Link: VERY IMPORTANT INFORMATION ON IDENTIFYING "PREMIUM" COATINGS"
A Note To Visitors: There is a lot of information about our Binoviewer systems that can be accessed on this website. Deciding which Denk Binoviewer System is the perfect one for you, especially if you own more than one telescope can be a bit confusing. Now the new Super Systems available in Standard or Denk II Versions make it all simple. The Super System works in virtually all telescopes. We encourage and welcome you to call us (Contact) with any questions that remain after exploring this website, even if this is just to confirm that you have chosen wisely. We receive calls from all over the world everyday and are happy to help you in the selection process. We know that those of you who are pursuing an understanding and appreciation of the heavens through visual observation expect nothing less than outstanding and trouble-free performance when adding a Denk. Whether you are are just beginning, or a seasoned veteran, we are always willing to spend as much time as necessary to help you take in the wonder that is The Cosmos, "The Denk Way".
"Frequently Asked Questions"
"Important Quality Information!!"
"Customer Comments"
"Our Matched Eyepiece Pairs"
"Star Diagonals"
"Manuals"
"Reviews"
Focal Reduction With a Denk Binoviewer In A Dob??
Click Here For more information
USA-Made Prisms Featuring 100% Dielectric Coatings Shipped World Wide to 35+ Countries and Counting!! Add our Matched D21mm and D14mm 65 degree eyepieces. They are guaranteed to render amazing performance in your Denk. We assemble them right here in the USA.
"The Vast and Mysterious Universe Deserves to Be Viewed With Nothing Less Than a Denk!" - Anonymous
OK.... I admit it. I said it. But it's true!!! -Russ
We Accept Credit Card Payment From Our Amateur Astronomy Friends From All Over The World! We Provide Systems To Customers In Over 35 Countries On Our Planet Earth!!
6% Maryland Sales Tax will be added to all retail prices for Maryland, USA residents.
I did have a chance to try the unit out in my LX90 last night. Simply Amazing! I don't think I can ever go back to monocular viewing! And the binoviewer itself is a work of art. I am extremely impressed. I had my best look yet at Comet Holmes in reduction mode of the Power x Switch.-R. Harris 11-15-07
  
The New, Protective Filter Switch....Click Here!!
The Filter Switch is Reviewed on Cloudy Nights.... Click Here
 Instant Switching Between Filters! Now reviewed in Astronomy Technology Today
October, 2007 Issue
The Image Above Is a Web Link To The New Night Vision Astronomy Website, where BIPH ordering information can be found. BIPH is a Night Vision Astronomy, Inc. Product. Denkmeier Optical Makes Several Accessories for BIPH
Exclusive Denkmeier Accessories for BIPH such as Power Switch Star Diagonals , Filter Switches, thread-on Barlows and Reducers are available through Night Vision Astronomy, Inc. These accessories allow BIPH to become amazingly versatile and operate to the full potential in SCTs, Refractors, and Newtonians. BIPH can utilize our focal reducers in Newtonians!
Call for more information.
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